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diff --git a/include/android_runtime/android_app_NativeActivity.h b/include/android_runtime/android_app_NativeActivity.h
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+++ b/include/android_runtime/android_app_NativeActivity.h
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+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ANDROID_APP_NATIVEACTIVITY_H
+#define _ANDROID_APP_NATIVEACTIVITY_H
+
+#include <ui/InputTransport.h>
+
+#include <android/native_activity.h>
+
+#include "jni.h"
+
+namespace android {
+
+extern void android_NativeActivity_setWindowFormat(
+        ANativeActivity* activity, int32_t format);
+
+extern void android_NativeActivity_setWindowFlags(
+        ANativeActivity* activity, int32_t values, int32_t mask);
+
+extern void android_NativeActivity_showSoftInput(
+        ANativeActivity* activity, int32_t flags);
+
+extern void android_NativeActivity_hideSoftInput(
+        ANativeActivity* activity, int32_t flags);
+
+} // namespace android
+
+
+/*
+ * NDK input queue API.
+ *
+ * Here is the event flow:
+ * 1. Event arrives in input consumer, and is returned by getEvent().
+ * 2. Application calls preDispatchEvent():
+ *    a. Event is assigned a sequence ID and enqueued in mPreDispatchingKeys.
+ *    b. Main thread picks up event, hands to input method.
+ *    c. Input method eventually returns sequence # and whether it was handled.
+ *    d. finishPreDispatch() is called to enqueue the information.
+ *    e. next getEvent() call will:
+ *       - finish any pre-dispatch events that the input method handled
+ *       - return the next pre-dispatched event that the input method didn't handle.
+ *    f. (A preDispatchEvent() call on this event will now return false).
+ * 3. Application calls finishEvent() with whether it was handled.
+ *    - If handled is true, the event is finished.
+ *    - If handled is false, the event is put on mUnhandledKeys, and:
+ *      a. Main thread receives event from consumeUnhandledEvent().
+ *      b. Java sends event through default key handler.
+ *      c. event is finished.
+ */
+struct AInputQueue : public android::InputEventFactoryInterface {
+public:
+    /* Creates a consumer associated with an input channel. */
+    explicit AInputQueue(const android::sp<android::InputChannel>& channel, int workWrite);
+
+    /* Destroys the consumer and releases its input channel. */
+    ~AInputQueue();
+
+    void attachLooper(ALooper* looper, ALooper_callbackFunc* callback, void* data);
+
+    void detachLooper();
+
+    int32_t hasEvents();
+
+    int32_t getEvent(AInputEvent** outEvent);
+
+    bool preDispatchEvent(AInputEvent* event);
+
+    void finishEvent(AInputEvent* event, bool handled);
+
+    // ----------------------------------------------------------
+
+    inline android::InputConsumer& getConsumer() { return mConsumer; }
+
+    void dispatchEvent(android::KeyEvent* event);
+
+    void finishPreDispatch(int seq, bool handled);
+
+    android::KeyEvent* consumeUnhandledEvent();
+    android::KeyEvent* consumePreDispatchingEvent(int* outSeq);
+
+    virtual android::KeyEvent* createKeyEvent();
+    virtual android::MotionEvent* createMotionEvent();
+
+    int mWorkWrite;
+
+private:
+    void doUnhandledKey(android::KeyEvent* keyEvent);
+    bool preDispatchKey(android::KeyEvent* keyEvent);
+    void wakeupDispatch();
+
+    android::InputConsumer mConsumer;
+    android::sp<android::PollLoop> mPollLoop;
+
+    int mDispatchKeyRead;
+    int mDispatchKeyWrite;
+
+    struct in_flight_event {
+        android::InputEvent* event;
+        int seq;
+        bool doFinish;
+    };
+
+    struct finish_pre_dispatch {
+        int seq;
+        bool handled;
+    };
+
+    android::Mutex mLock;
+
+    int mSeq;
+
+    // Cache of previously allocated key events.
+    android::Vector<android::KeyEvent*> mAvailKeyEvents;
+    // Cache of previously allocated motion events.
+    android::Vector<android::MotionEvent*> mAvailMotionEvents;
+
+    // All input events that are actively being processed.
+    android::Vector<in_flight_event> mInFlightEvents;
+
+    // Key events that the app didn't handle, and are pending for
+    // delivery to the activity's default key handling.
+    android::Vector<android::KeyEvent*> mUnhandledKeys;
+
+    // Keys that arrived in the Java framework and need to be
+    // dispatched to the app.
+    android::Vector<android::KeyEvent*> mDispatchingKeys;
+
+    // Key events that are pending to be pre-dispatched to the IME.
+    android::Vector<in_flight_event> mPreDispatchingKeys;
+
+    // Event sequence numbers that we have finished pre-dispatching.
+    android::Vector<finish_pre_dispatch> mFinishPreDispatches;
+};
+
+#endif // _ANDROID_APP_NATIVEACTIVITY_H